<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card class="box-card">
         <!-- 搜索 -->
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" 
                    v-model="queryInfo.query" clearable
                    @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search"
                    @click="getGoodsList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary"  @click="goAddPage">添加商品</el-button>
            </el-col>
        </el-row>

        <!-- table表格 -->
        <el-table :data="goodsList" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name"></el-table-column>    
            <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column> 
            <el-table-column label="商品重量" prop="goods_weight" width="95px"></el-table-column>
            <el-table-column label="创建时间" prop="add_time" width="140px">
                <template slot-scope="scope">
                    {{scope.row.add_time | dateFormat}}
                </template>
            </el-table-column>
            <el-table-column label="操作" width="130px">
                <template slot-scope="scope">
                    <!-- 修改 -->
                    <el-button type="primary" icon="el-icon-edit" size="mini"
                    @click="showEditDialog(scope.row.id)"></el-button>
                    <!-- 删除 -->
                    <el-button type="danger" icon="el-icon-delete" size="mini"
                   @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>    
        </el-table>

        <!-- 分页 -->
         <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total" background>
        </el-pagination>
    </el-card>
  </div>
</template>

<script>
    export default {
        data(){
            return {
                // 查询参数对象
                queryInfo:{
                    query: '',
                    // 当前页数
                    pagenum:1,
                    // 当前每页显示多少条数据
                    pagesize:10
                },
                // 商品列表数据
                goodsList:[],
                // 数据总数
                total:0,
                // 控制添加对话框的显示与隐藏
                addDialogVisible:false,
            }
        },
        created(){
            this.getGoodsList()
        },
        methods:{
            async getGoodsList(){
               const {data:res} = await this.$http.get('goods',{params:this.queryInfo})
               if(res.meta.status!==200) return this.$message.error('获取商品列表失败')
            //    this.$message.success('获取商品列表成功')
            //    console.log(res.data);
               this.goodsList = res.data.goods
               this.total = res.data.total
            },
            // 监听pagesize改变的事件
            handleSizeChange(newSize){
                this.queryInfo.pagesize = newSize
                this.getGoodsList()
            },
            // 监听页码改变
            handleCurrentChange(newPage){
                this.queryInfo.pagenum = newPage
                this.getGoodsList()
            },


            // 根据id删除商品
            async removeById(id){
                // 弹窗提示
                const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => err)

                // 商品确认删除 返回confirm字符串
                // 商品取消删除 返回cancel字符串
                if(confirmResult !== 'confirm') return this.$message.info('已取消删除')
                const {data:res} = await this.$http.delete('goods/' + id)
                if(res.meta.status !== 200) return this.$message.error("删除商品失败")
                // 更新数据列表
                this.getGoodsList()
                // 提示删除成功
                this.$message.success("删除商品成功");
           },
            // 跳转添加商品页面
            goAddPage(){
                this.$router.push('/goods/add')
            }
        }
    }
</script>

<style>

</style>